International Classification of Diseases for Oncology (ICD-O)

International Classification of Diseases for Oncology

(ICD-O)

Young-Joo Won PhD

Division of Cancer Registration & Surveillance National Cancer Center, Korea

Workshop on Cancer Registration Health Promotion Centre (HPC), MOH Brunei Darussalam

Jan. 26 ? 28. 2016

What is ICD-O ?

International Classification of

Disease for Oncology

Classification used in tumor or cancer registries

for coding

the site(topography) and the histology(Morphology)

of the neoplasm

What is ICD-O ?

? Specific code set for neoplasms ? Coding system for primary site and cell

type

? Subset of International ? Classification of Diseases

ICD-10 All diseases

ICD-O-3 Subset - neoplasms only

Coding systems of ICD-10 & ICD-O-3

ICD-10

Single axis

?

?

?

Site of origin / site of secondary tumor / site of origin + morphology

C

or D

ICD-O-3 Dual axis

?

Site of origin

?

Morphology Behavior

C

Coding example

ICD-O-3 topography is a subset of ICD-10, but differs at a basic level

Term Lung tumor, benign

ICD-10 D14.3

ICD-O-3 C34.9 8000/0

Lung tumor, borderline Lung tumor, in situ

D38.1 D02.2

C34.9 8000/1 C34.9 8000/2

Lung tumor, invasive

C34.9

C34.9 8000/3

Lung tumor, metastatic

Lung tumor, unclear if primary or metastatic

C78.0 D38.1

C34.9 8000/6 C34.9 8000/9

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